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UNITED STATES PATENT EEicE.

TAPLEY IV, YOUNG, OF IVASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO \VILLIAM WALL, OF SAME PLACE.

APPARATUS FOR EXTRACTING OI L.

SPECIFICATION forming part of Letters Patent No. 567,434, dated September 8, 1896.

Application filed December 14, 1896. Serial No. 572,202. (No model.)

T on whom it may concern.-

Be it known that I, TAPLEY W. YOUNG, a citizen of the United Stat-es, residing at \Vashington, in the District of Columbia, have invented certain new and useful lmprovem cuts in Apparatus for Extracting Oil. of which the following is a specification, reference being had therein to the accompanying drawings.

The special object which I have sought to :0 accomplish in the invention aforesaid is the extraction of the oil remaining in cotton-seed meal after the ordinary process of expression. The best effect of said process leaves about twenty gallons of oil in every ton of the meal.

I 5 The presence of this oil in the meal is believed to be detrimental, and the thorough extraction of it is therefore desirable, both in order to save the oil and to improve the meal. To accomplish this result, I make use '20 of the process of solution of the oil by means of benzin or similar solvent, and for the practice of this process on the material specified I have devised the apparatus shown in the accompanying drawings and hereinafter fully described.

In the drawings, Figure 1 shows a vertical section; Fig. 2, a transverse section of the apparatus on line a a of Fig. 1.

The main part of the apparatus consists of a 0 tank provided with an agitator for holding the meal, a pipe for diffusing the benzin or other fluid solvent at the bottom of said tank, and an overflow for the solvent with the oil taken up after it has passed through the meal.

3 5 Other parts relate to the freeing of the meal from the residue of the solvent, the condensation, and the circulation of the said solvent. The meal-tank is shown at A. It is provided with a hollow shaft 1, stepped in the bottom 0 of the tank and provided with a series of holes arranged around its lower end, as

. shown at 2. The shaft turns in a stuffingbox in the cover 3 and has a bevel-gear a in mesh with bevel-gears 5 5, alternately muti- 5 lated, so as to reverse intermittingly the shaft 1. The upper end of hollow shaft 1 is made to turn, in its vapor-tight connection, with the fixed pipe 6, connected with a condensing-coil 7 in a cooling-box 8. The shaft is provided with stirring-blades 9. The tank A is inclosed in a shell B and supported therein by distance-pieces 10, the upper edge of the tank being held a little below the top of the shell and turned over to permit easy overflow of the solvent and oil, which, pass- 5'5 ing from the tank, falls down the annular passage a into the bottom of the shell, whence it escapes by the pipe 11 to the separator 12.

The pipe 11 is provided with valves for regulating or shutting off the flow. The sepa- 6o rator is jacketed, and in the jacket-space is a heating-coil for driving off the solvent from the oil. Over the upper part of the separator is a shield 13, inclined to one side, in the center of which is a hole a little larger than the opening of the pipe 11 into the separator and directly beneath said opening, so that the mingled oil and solvent will fall directly through said hole. The rim of the hole is raised and turned over. The mingled oil and solvent fall into the separator and heater, and the volatile solvent driven off rises through the hole, is turned outward by the roof, and passes down the inclined shield through the pipe 14 to the condenser 15. Thence it may be conveyed in any convenient way back to the coil 7, but I have shown a vaporizing-tank 16, the surrounding coil of which heats and vaporizes the solvent and thus forces it through the pipe 17 back into the coil 7. v

' The downward movement of the meal fromthe tank is regulated by a check-valve 18, and extends into a jacketed passage 19, provided with stirring and forcing blades on a shaft 22. In the jaoketspace are steam-pipes for heating the meal, and thus driving off therefrom the remaining trace of the solvent adhering thereto. This rises through an opening in a shield over the passage 19, simio lar to that shown in the separator and illustrated in Fig. 2. The solvent and whatever oil it may contain are conveyed by a by-pipe 24 to the pipe 11, and thence to the separator. The meal falls into the tank 25, from 5 which it may be removed through a door 26. The oil is drawn off through apipe 27. I may, for some purposes, use also a drain-pipe from the meal-passage to the pipe 11. The inlet 29 is for the introduction of the meal.

I claim- 1. In combination, a tank as A, located in (No M01181. 2 Sheets-Sheet 1.

F; ZIBLKE. AUTOMATIC STOP FOR MAGHINES.

N0. 567,435. Patented Sept. 8, 1896. 

